v0.0.0.4 2021-9-3 Game Camera & ControlPawn added

GameCamera:

•  update camera location to be floating above the paddle and ball midpoint
•  if ball is too far from paddle, target focus on ball only
•  Got rid of roll jitter on ball movement in camera by changing ball pivot to center of ball
•  Camera transition: get both ball and paddle in frame at all times... kinda works

ControllerPawn

•  Made empty pawn to send controller input to ball & paddle because BP_PlayerController can only possess and send input commands to one pawn at a time. Very frustrating.
•  update controller graphic with current controls
•  Can now control ball and paddle at same time

Paddle

•  paddle stop getting stuck in walls, 
  • new issue: jitters when going against the wall
•  paddle magnet pull on new controller pawn

Ball

•  Ball jump on new control pawn
•  Ball thrust boost on new controllerpawn
• refactored magnet pull use "SetAllPhysicsVelocity" instead of thrusters